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Super Precision Angular Contact Ball Bearings 71908 ACD/P4A

Super Precision Angular Contact Ball Bearings 71908 ACD/P4A

The 71908 ACD/P4A is a super precision angular contact ball bearing with a 40mm bore and 62mm outer diameter, crafted from durable chrome steel. It handles radial loads up to 2632 lbf and spins smoothly at speeds up to 30,000 RPM.

With a 25° contact angle and phenolic cage, it offers stable performance under angular loads. The open design allows for easy lubrication, ensuring long service life.

This bearing is ideal for high-precision applications like machine tool spindles or dental equipment. Its P4 tolerance class ensures reliable accuracy in demanding conditions.

Weighing just 0.11kg, it’s lightweight yet robust. Compatible with SKF bearings, it’s a practical choice for replacements or upgrades.

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Product Parameters

  • Part Number 71908 ACD/P4A
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 40 mm
  • Bore Dia Tolerance -0.006mm to 0
  • Outer Dia 62 mm
  • Outer Dia Tolerance -0.007mm to 0
  • Width 12 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 6.35 mm
  • Ball Qty 21
  • Contact Angle 25°
  • Tolerance Class P4 (ABEC-7)
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 2632 lbf
  • Static Radial Load 1800 lbf
  • Lubrication Lubricated
  • Temperature Range -30° to 110 °C
  • Max Speed 30000 rpm
  • Weight 0.11 kg
  • Price（$） 288.153
Super Precision Angular Contact Ball Bearings 71908 ACD/P4A dimension drawing
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Features

Why Choose 71908 ACD/P4A Bearing for Precision Tasks?

71908 ACD/P4A Bearing features a 25° contact angle, ideal for handling combined radial and axial loads with precision.
Its chrome steel construction ensures durability and resistance to wear in high-speed applications.

With a dynamic radial load capacity of 2632 lbf, it delivers reliable performance under demanding conditions.
The phenolic cage maintains ball alignment, reducing friction and extending operational life.

Designed for speeds up to 30,000 rpm, it balances efficiency and precision in angular contact applications.
Its P4 tolerance class guarantees high accuracy, making it suitable for precision machinery.

Application

Key Fields for 71908 ACD/P4A Bearing
71908 ACD/P4A Bearing is commonly used in high-speed machine tools, where its precision angular contact design ensures accurate spindle rotation. The 25° contact angle provides stable performance under combined radial and axial loads.

In automotive applications, 71908 ACD/P4A Bearing supports components like wheel hubs and gearboxes, offering smooth operation at high speeds. Its phenolic cage reduces friction, making it suitable for demanding driving conditions.

For automation systems, 71908 ACD/P4A Bearing is ideal for robotic arms and CNC machines, where its P4 tolerance class guarantees consistent movement. The open design allows for easy lubrication, extending service life in continuous operations.

Medical imaging devices benefit from 71908 ACD/P4A Bearing’s low-noise performance and high-speed capabilities. The chrome steel construction ensures reliability in critical diagnostic equipment.

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